Asked by Steve
can someone show line by line step by step
factor
x^2-15
factor
x^2-15
Answers
Answered by
Bosnian
a ^ 2 - b ^ 2 = ( a + b ) ( a - b )
x ^ 2 + [ sqrt ( 15 ) ] ^ 2 =
[ x + sqrt ( 15 ) ] * [ x - sqrt ( 15 ) ]
sqrt mean "square root"
x ^ 2 + [ sqrt ( 15 ) ] ^ 2 =
[ x + sqrt ( 15 ) ] * [ x - sqrt ( 15 ) ]
sqrt mean "square root"
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